---
title: ctl_unit
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.13+]
path: kernel/ctl_event_data/1809200-ctl_unit
---

# ctl_unit

The kernel control unit.

## Declaration

```occ
u_int32_t ctl_unit;
```

## See Also

### Fields

- [ctl_id](kernel/ctl_event_data/1809197-ctl_id.md)